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Ethyl Glucuronide (EtG) is a unique biological metabolite that is formed in the body after the consumption of ethanol, typically from drinking alcoholic beverages. Reported to be detectable in urine typically from 8-80 hours after ingestion, and 2-36 hours in blood EtG is detectable over a period roughly 5-6 times longer than traditional urine ethanol testing Detectable in oral fluid only a few hours longer than ethanol* EtG has also been isolated in hair follicles *G.Heiseth, B. Yttredal, et.al. ; JATox: July 2010
EtG has emerged as the preferred choice for Alcohol detection due to its presence for a longer period of time in contrast to Ethyl Alcohol. It can thus be used to detect recent alcohol consumption, even after Ethanol is no longer measurable. EtG is detectable in chronic drinkers for 80 hours or even up to 5 days. The factors that determine the detection window includes volume of Alcohol consumed and the time duration between each drink.